There is no physical structure separating the naso- and oropharynx (or between the oro- and laryngopharynx for that matter). They are simply different regions of the pharynx with no clear cut borders between them. However, one can say that the oropharynx starts at about the level of C2 vertebral bone; and the larygnopharynx from below the hyoid bone.
The areas of the pharynx are the Nasopharynx, Oropharynx, and Laryngopharynx. The nasopharynx it provides passageway for air. The oropharynx is below the nasopharynx and is for food moving downward from the mouth and for air moving to and from the nasal cavity. Lastly the laryngopharynx is below the oropharynx and is a passageway to the esophagus.
NASOPHARYNX: the first division of the pharynx, posterior to the nasal cavity and continues downward to behind the mouth.
The Oropharynx connects the two
The throat is also known as the pharynx. The top of the pharynx is the nasopharynx, and the bottom portion is the oropharynx.
The part of the pharynx superior to the soft palate is called the nasopharynx. Cone shaped projection of a soft palate is a uvula.
The areas of the pharynx are the Nasopharynx, Oropharynx, and Laryngopharynx. The nasopharynx it provides passageway for air. The oropharynx is below the nasopharynx and is for food moving downward from the mouth and for air moving to and from the nasal cavity. Lastly the laryngopharynx is below the oropharynx and is a passageway to the esophagus.
nasopharynx, oropharynx and laryngopharynx
The pharynx although its broken into the nasopharynx, the oropharynx and the laryngopharynx.
NASOPHARYNX: the first division of the pharynx, posterior to the nasal cavity and continues downward to behind the mouth.
The pharynx conducts air from the nasopharynx to the laryngopharynx.
The nasopharynx and the oropharynx merge into the larynx
Esophagus
The Nasopharynx, the Oropharynx, and the Laryngopharynx.
The Oropharynx connects the two
The throat is also known as the pharynx. The top of the pharynx is the nasopharynx, and the bottom portion is the oropharynx.
Pharynx is divided into nasopharynx, oropharynx and laryngopharynx. Upper most part is called as nasopharynx.
1/3 Nasopharynx , Oropharynx ,and the Larynopharynx